Hemp-stripping machine.



E. DRINGMAN.

HEMP STRIPPING MACHINE.

APPLICATION FILED NOV. 25, 191-0.

1,@46,281 Patented Dec. 3, 1912.

5 SHEETS-SHEET 1.

l witnesses E. DRINGMAN.

HEMP STRIPPING moamn.

APPLIOATION IILBD 11011.26. 1910.

Patented Dec. 3, 1912.

5 SHEBTSSHEET 2.

anvcnfoz 6M4 @W M, Q; wmmwfi E. DRINGMAN.

HEMP STBIPPING MACHINE.

urmnumn FILED NOV. 25, 1910.

Patented Dec. 3, 1912.

6 SHEETS-SHEET 3.

F l HHHH l HH U V I ll E. DRINGMAN.

HEMP STRIPPING MACHINE.

APPLIOATION FILED NOV. 25, 1910.

1,06,281, Patented Dec.3, 1912.

6 SHEETS-wSHEET 4.

- nmwfoc fl WM, 2mm V WM E. DRINGMAN.

HEMP STRIPPING MACHINE.

APPLIOATION FILED NOV. 25, 1910. 1,946 1 Patented Dec. 3, 1912.

5 SHEETS-SHEET 5.

, hemp stripping machines, and the object EMIL nmivemaiv, orrxhone, rmnrrrmn Isms.

finflssrmrrme madame.

' Specification of Letters Patent. i

To all whom it may concern: I l

Be it known that I, EMIL DRINGMAN, a citizen of the United States, residing-at Fiaong, in the Province of Tayabas, Philippine Islands, (whose post-o-flice address 1s care ofHaussermann, Cohn and Fisher, No.

9 Plaza Cervantes, Manila, Philippine- Islands,) have invented certain new and useful Improvements in Hemp-Stripping Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. My lnventlon relates. to improvements n of my invention is to produce a .machine of this character which is portable, simpleand easy of operation, and provided with means for pullingwith a short strain.

With this object in view, 'my

invention consists in the construction and 'jcombinations of parts as hereinafter described and claimed. i V

In the accompanying drawings-Figure 1 is an end view of the machine. Fig. 2

is a side view of one end of the machine. Fig. 3 is a top plan view of the same. Fig. 4 is a horizontal cross-section of the winding drum and its operating mechanism. Fig. 5 is an end view of the winding drum and its support Fig. '6 is an enlarged longitudinal section of the parts shown in Fig. 2. Fig. 7 is an enlarged end view of the parts shown in Fig. 6, looking in the direction of the arrow. Fig. .8 is a crosssection on the line 88 of Fig. 3, looking in the direction of the arrow. Fig. 9 is a perspective view of the clamp, and Fig, 10

is a de ail view of one of the knives. The machine is supported in ,a frame, as

shown in Fig. '3, having upright posts 1.-

cross beams 2 near the bottom thereof, and cross. beams 3 near the top'of the posts 1. A subsidiary frame is mounted on top of the main frame, having uprights 4, and cross 3 pieces 5. In bearin s 6- and 7 supported on top of the frame,-' '1's mounted the driving shaft 8, driven by aip'ulley 9 from any suitable source -of power and ordinarily arranged to run aboutone hundred revolutions a minute. On the top of the beams 3 is mounted a long platform 10, having side rails 11, and on this platform is adaptedto slide a carriage 12, having wheels 13, one

he hemp under the knives Application had fiovember 25, 1910. Serial 30. 594,203.

pair near each end, adapted to engage with the rails 11. :This carriage is provided on its upper face with a long rack 14 and with a right angled bar15, ad'ustably secured ontop of the carriage 12 y means of set screws 16.

On the shaft 8 and running loose thereon,

14. This gear pinion is provided with a This clutch is shifted by means ,of a bent lever 19, pivotally supported at- 20 on an gagin the clutch '18 by means of the usual fork tting in a groove in said clutch. The lever '19 has connected to it a link 22, .which link is also connected to a bent lever 23, pivoted at 24 on one of the upright beams 1.

to a link 25, and the lower endof-this link beams -1 and provided with a treadle 28. Obviously from the connections described, the clutch will be thrown into engagement with the clutch face of the pinion 17 by downward pressure on the treadle 28.

29 represents a bracket on one side of'the carriage, to which is fastened, in a perfora a guide pulley 31 on a part of the main is attached a weight 32. This is for" the initial position, as shown in Fig. 3, when the clutch 18 is disengaged from the pinion 17.

one end of the carriage 12 is provided with an upwardly extending clamp. This clamp consists of a horizontal base piece 33, attached by screws 34 to an up-turned end of From the ends of this base piece, rise vertical sides 35, terminating in andconnected together by an arched top 36,-best shown in Fig.71. To the center of this top 36 and in Figs. 2 and 6, isanarm 37, terminating '38, having-a stop pin 39 at its top and pro: vided on its lower outer face with teeth 40.

piece as-best shown in Fig. 6 and bolted to form undercut guides, as indicated at 42,

The other-end of the lever 23 is connected pivotally engages, at about its center, with a .lever 26, mounted at 27 on one ofthe tion thereof, a chain 30, which passes over frame, and to-the lower end of this chain purpose of returning the carriage to its:

.the carriage, as-shown. in Figs. 2 and 6.-

in its outerend in a quadrant shaped piece Patented Dec.

is a gear pinion l7, meshingwith the rack v clutch face, which engages the clutch 18.

arm 21, mounted on themain framea'nden- As shown at the left hand end of Fig. 2, Y

projectingoutwardly therefrom, as shown On one side of the base piece 33 is located a'strip of metal 41, separated from said base thereto. The sides 35 are bent around so as Fig. 1, or separate pieces may be bolted on,

if, desired, to form such guides. Within the guides thus formed, slides freely the upper over the flat plate or bar 41, as shown in,

Fig. 6, firmly clamping the leaves between them.- Pivoted to this clamp member atthe point 46 and at about the centerof said member, is the link 47, the other end of which is pivoted to a bent arm 48, which arm is pivotally mountedjn ears49 on the part 36 or brackets attached theretop This arm extends out beyond thepart-38 and is provided with an extension or fork 50,, the

' two parts 48 and 50 engaging the quadrant face 38. Theparts 48 and 50 may be made integral. with each other or of separate 1 parts united together, and between them is pivotally mounted a pawl 51, which is normally pressed by a spring 52, attached to the part 48, against the teeth of the quad-,

nut 38. Said pawl'51 has limited movement, sufficient to be released from'the rack 40, such limit being determined by the fork construction 50. The pawl is disengaged from the teeth on the quadrant 38 in the following manner :53represents a bracket fixed to one of the upright parts 35, and in this bracket and in the ear 49 is mounted a two armed lever 54, (Figs. 2 and 3). One arm of this leverv is connected toa link 55, to which is connected a cord or chain' 56, which is operated as hereinafter described. The other arm of the lever 54 loosely engages an arm 57, having one end bent, as shown in Figs. 2 and 3, and threaded in the bent end thereof is one end of a link 58, having its other end engaging the pawl 51. Obviously from the construction described, a pull on the cord or chain 56' will disengage the pawl 51 from the teeth on the quadrant 38. Fixed to the front face of the clamp 35 are plates 59, having beveled surfaces 60. The cord 56 passes over a guide pulley 61, mounted on the main frame, and at its lower end is pivoted to a bent arm 62, which arm is rigidly attached to a bent lever 63, pivoted at 64 to an ear 65 on the main frame, and provided with a Weight 66 at its other end.

Firmly secured to the upright beams 1 and to some of the cross beams, is a C- shaped frame 67, and-adjacent to said frame and resting on the cross beams is another.

5 separate pieces may be bolted thereon, if

desired. An opening 72 is left between the parts 68 and 71. In the guides 72, slides a plate 73, provided with holes 74 and 75, with which the ends of the cam plates 59 engage, as hereinafter described. The lowerpart of the plate 73 is bent, as shown at 76, and to this bent portion is fastened a comb or knife'77 by means of bolts 78. This comb is shown in detail in Fig.10, and both edges thereof are serrated, so that it Y be reversed and both edges thereof use v 7 9 represents a leveigpivoted at 80 on the part and connected by a link 81 with the part 73. .Obviously, the movement of this I .lever will raise or lower the part 73 and therefore the knife 77. To the other end of this lever, is pivotally attached one end of a link 82, the lower end of which is pivotally connected to a lever 83, said lever be-' 85 ing pivoted at a point 84 to an arm 85, rigidly attached to the-lever 63, see Fig. 2.

Bolted to the part 68 and extending upwardly therefrom is a comb or knife 86.

.The C-shaped frame 67 is also provided plate-is a knife or comb 91, and the four upright beams 1 is a guide frame having horizontal arms 92 and 93 and vertical arms 94 and 95, and the lever 63 passes between, these vertical arms. Thearm 94 has a stop 96 thereon, and the upper part .of the arm is inclined, as shown in Fig. 1. On the screw 97 on the arm 95, is coil'eda spring 98, the lower end of which is fixed to the arm 95 and the upper free end of which extends outwardly across the path of the lever 63, as shown in Fig. 1, so that said spring always tends to force said lever outwardly from the framework as the lever is moved up, this construction being used to insure 120 that the lever 63 shall engage the stop 96 after its movement upwardly past it.

99 represents a vertical rod, pivoted in brackets 100 and 101, the latter being-curved, and the bracket 100- being carried by the frame near the upper part of the arm 94, and the bracket 101 being secured to the main frame. The lower endof the rod 99 is bent outwardly and then downwardly, as shown at 102. This lower end is adapted to 13 f the stop 96; at the proper time,-as hereinafterv described. The upper end of the rod 99 is also bent inwardly, as shown at 103. The end 103 of the rod 99 is adapted to be struck by the clamp carried on the carriage on its return movement, swingingsaid rod and causing the end 102 thereoftodisengage the lever 63 from the stop 96.- Before this happens, however, the 'camplates 59 have engaged in the holes 74 and 75 of the part 73 and the corresponding part mounted in the C-sha-ped frame 67, andhave lifted the knives 77 and 89. Bolted to the beam 5 is a C-shaped frame 104, having a right angled extension 105. This extension and the opposite upright port-ion of the frame 104 are cut away so as to provide guides, as shown at 106, or the part 105 may be made separate from the. part 104 and secured thereto, if desired, and a similar construction may be used on the opposite side of the guiding frame. \Vithin the guides thus formed, a plate 107 is arranged to slide freely, and this plate has fastened-to it on its lower edge a knife or comb 108, beneath which is a metallic plate 109.1 The knife 108 is substantially made like the knife 77, which indeed is the construction of all the knives, except as hereinafter described. To the center of the part 107, is pivoted a link 110, the upper part of which is pivoted to a lever 111, said lever being pivotally mounted at 112 in the part 105. This lever 111 carries a weight 113 at one end thereof.

114 represents a split frame mounted on the beam 5, between the parts of which the lever 111 works. This frame carries at its top .a bracket 115, having thereon a pulley 116, over which passes a cord or chain 117. The upper end of this cord or chain is attached to the lever 111 and the lower end is attached to a lever 118, pivoted at 119 on one of the beams 3. A link 120 is connected to the lever 118, and thelower end of this link is connected to a frame 121, pivotally mounted on one of the beams 2 and having a treadle 122.' Obviously, a downward pressure on this treadle will, by means of the connections just described, lift the lever 111 against the resistance of the weight 113, and thereby lift the part 107 and the knife or comb 108.

Bolted to the part 107 are inclined plates 123, and tothe lower ends of these plates is secured a knife or comb 124, made like the knife 77.

125 represents a plate having-one edge cut away, with the cut away portion located above the bar 5, see Fig. 8. This plate is supported upon a number of rods 126, the lower ends of which are screw-threaded and mounted in bent springs 127, the lower ends of which are secured to one of the beams 3,

so that the plate 125 is resiliently supported.

This plate 125 has on one edge an upwardly projecting portion '128, to which is'secured a knife or comb, 129, made like the knife or comb-77. Into 'the' outer edge of the plate 125 are screwed a series of small knives 130, Figs. v1 and 8. These knives extend in an inclined direction upwardly and outwardly from the plate 125 and are located in front of the knife or comb 124 and serve to separate the fibers of the hemp leaves.

Referring to Fig. 9, in this figureis shown a hand clamp, around which one end of the hemp fibers are wound after the leaves have been operated upon by the'movement of the carriage 12. This clamp consists of'a handle'131 and two parallel arms 132 and 133,-

the arm 132 being provided with curved hooks 134.

On the shaft 8 is fixed one end of a clutch member 135, Fig. 3, or it may be'made integral therewith. This clutch member is adapted to engage a similar clutch member 136 on the winding cylinder hereinafter described. This winding cylinder is shown in plan view in Fig. 3 and details thereof are shown in Figs. 4, 5, and 8. This winding cylinder is arranged to slide'loosely on the shaft-'8. As shown in Fig.v 4,the clutch member 136- has an enlarged portion 137, i

one side of which is tapered, as shown in Fig. 4, and securely fastened to this en larged portion bybrazing, for instance, is a stationary part 138, forming one half of the split cylinder. Opposite to the part 138 is the movable part 139, pivoted as shown at 140 on the part 137.

On the end of the shaft 8 and in the center thereof is fixed a screw 140, and on this 'screw is loosely mounted the perforated end of a right angled plate 141. Pivoted to the outer end of thisplate, is a cam plate 142, having a cut away portion 143, which acts as a cam.

Fastened to the inner part of the half cylinder 139 is a plate 144, bent at right angles and terminating in a fork which embraces the part 142.

On the mainframe of the machine, is mounted a plate 145, bent in the form of an inverted U and which acts as a guide. On the horizontal part of this plate is adapted to slide a clutch operating device 146, composed of two fiat plates bolted together and sliding freely on the horizontal part of the guide 145. Carried by the part 146 is a fork 147, the ends of which are engaged in any suitable manner with a ring 148, which in turn is mounted upon another ring 149. The ring 148 carries bent rods or wires 150, which project inwardly between the cylinder halves 138 and 139.

' The clutch operating device is operated by the following mechanism (see Figs. 1 and 3) :-151 represents a treadle, which 'is mounted on rods 152 pivoted to one of the beams 1: To one of the rods 152 is connected beams.

a l-ink'153, which link is connected to a lever 154, piv0ted at 155 on one of the framework Connected to the other end of the lever is a cord or chain 156, passing over a guide pulley 157, held in a bracket 158 and.

connected to the part 146. A spring 159 normally holds the parts in the positlon shown 'in Fig. 3, although, of course, a weight could be used instead of said spying, if desired.

160 represents a slightly conical roller onto'which the hemp fiber is adapted to be placed by the operation of the rings 148 and 149 when the'stripping and cutting operation is finished. This roller is freely revoluble on a shaft 161, bent as shown at 162 and having a vertical portion mounted in brackets aflixed to one of the beams, so that the roller 160 may be easily-swung from the position shown in full lines in Fig. 3

'to the position shown in dotted lines in said figure.

The operation is as follows: One operator slips the wide part of the hemp leaf between the clamping portions 41, 44, and 45,

and fastens it there by means of the lever 48, and slips the other part of the leaf un derneath the knives or combs 77 and 89 mounted in the frames 67 and 69, said members 7 7 and 89 beingthen held in their upright position by the members 59 engaging within the holes 74 and 75 ofthe plates 73 and 73' "and the carriage carrying the rack 14 is then at the extreme limit of its movement in one direction. foot upon the treadle 28, causing, by the clutch means already described, the pinion 17 to revolve and advance the-rack 14 and thereby the carriage 12. As the cam faces 60 pass from out the holes 74 and 75, the Weighted lever 63 pulls down the knivesor combs upon the leaf and the latter is drawn underneath said knives or combs 7 7 and 89 and above the knives'or combs 86 and 91, which thoroughly cleans the fiber. WVhen the carriage 12 has reached nearly the end of its travel the arm 15 strikes a part of the link 22 disengaging the clutch 18 from the pinion 17, whereupon the motion of the carriage is stopped. \Vhile the carriage is thus moving the slack of the cord or chain 56 is taken up, and'when said cord is pulled taut the arm 54 is moved,-the pawl 51 automatically disengaged,a11d the lever =18 lifted. By this operation also the lever 63 is raised to its uppermost position where it is supported by the stop 96. As the lever 63 is raised it lifts the knives 77 and 89 through the medium of theconnecting rods 82 and 88. The operator then takes the clamp shown in Fig. 9 and winds the end of the fiber around the same through the groove therein, and hands it to the next operator. The first operator, who has up to this time held the carriage by its clamp so that it cannot re- The operator then presses his turn, releases it,, whereupon 'the weight 32 returns it to its original position. \Vhen the carriage reaches the limit of its movement in the other direction, the clamp strikes the arm 103 of the lever 99, whereupon the arm 102 moves the lever 63 against the tension of the spring 98,, so as to disengage said lever from the stop 96, allowing it to drop, and the operation is then repeated indefinitely. The second operator takes the implement shown in Fig. 9 with the end of'the hemp fiber twisted around it, and pressing his foot upon the treadle 122lifts the knife or comb 124. He then passes the clamp or implement through the opening thus formed, drawing a portion of the leaf across the knives 130, and fastens said implement, by means of its hooks, into the double cylinder, as shown in Fig. 8. Previously to pressing the treadle 122 with his foot, he has pressed the treadle 151 with his foot, so as to bring the clutch members 135 and 136 out of engagement. After the implement is in position on the cylinder, as shown in Fig. 8, he releases the treadle 122 and the treadle 151, whereupon the spring 159 brings the clutch faces 135 and 136 into contact and the fiber is wound onto the double cylinder 138 and 139, being still further cleaned by the knives or combs 124, 129, and 108, and being split at the same time by the knives 130. When the leaf has been completely wound up 011 the double cylinder, the second operator resses upon the treadle 151., -which imme iately disengages the clutch faces 135 and 136. At the same time, he swings in the roller 160 to the position shown in dotted lines in Fig. 3. A further pressure upon the treadle 151 causes the rings 148 and 149 to slip the fiber, clamp and all, onto the roller 160, and during which operation the cylinder section 139 moves inwardlyon its pivot 140 to readily permit of the fiber and clamp being stripped therefrom. The third operator, who is usually a boy, then swings the roller 160into the position shown in full lines in Fig. 3 and unwinds the fiber from the roller 160 and disengages it from the holding implement shown in Fig. 9, the operation being repeated indefinitely.

\Vhile I have thus described my invention, I wish it to be distinctly understood that I do not limit myself to the exact; constructions shown and described, as these could be varied widely Without departing from the means for simultaneously opening the clamping. means and raising-said'knives at "a predetermined point in themovement ofsaid carriage, substantially as described.

2. In a hemp strip ing machine, the combinationof a mova le carriage provided with clampingmeansat one end, knives or combs under'which the hemp leaves are drawn by the movement of said carriage, operating-means for said carriage means for simultaneously o hening the clamping means and raising said knives at a predetermined oint in the movement of said carriage, an means for returning said carriage to its initial position,substantially as described. l

3. In a hemp stripping machine, the combination of a movable carriage, clamping means carried thereby, knives or combs under which the hemp leaves are drawn by the movement of said carriage, operating means for said carriage, means for simultaneously opening said clamps. and lifting said knives; means for disengaging said operating means at a predetermined point in the movement of said carriage, -means ,for returning said carriage to its initial position, and means operated by said carriage on its return movement'to release said knives, substantially as described.

4. In a hemp stripping machine, the combination of a movable carriage, clamping means mounted thereon; cam plates mounted on said clamping means,'knives or combs under which the hemp leaves are adapted to be drawn, supports for said knives provided with perforations adapted to oo-act with said cam plates to hold said knives lifted, operating means for said carriage, means for simultaneously opening said clamping .-means and lifting said knives, means for disengaging the operating means at a predetermined time in the movement. of said carriage, devices for holding said knives in their lifted position, means for returning said carriage to its original position, and means whereby the return of said carriage releases the means which -hold.the knives in their lifted position, substantially as described.

-5. In a hemp stripping machine, the combination of a Constantly rotating driving shaft, a pinion loosely mounted thereon, a clutch splined to said shaft, a c'arriage provided with a rack engaging said pinion, means for throwing said clutch into engagement with said pinion, a clamp carried by one end of said carriage, knives under which the hemp leaves are drawn by the movement of saidcarriage, and means for simultaneously lifting said knives and unlocking said clamp at a predetermined position of the carriage, and a device 'carried by said carriage which disengages 'said clutch 65 from said pinion at the limit of the movement of the carriage in one direction, substantially as described. I v

6. In a hemp stripping machine, the comb nation of a constantly rotating driving shaft, a pinion loosely mounted thereon, a' clutch splined to said shaft, a carriage provided with a rack engaging said pinion, means for throwing said clutch into engagement with said pinion, a clamp carried by one end of 'saidcarriage, knives under which the hemp leaves are drawn by themovement of said carriage, means for simultaneously lifting said knives and unlocking said-clamp at a predetermined position of the carriage, and a device carried by said carriage which disengages said clutch from said pinion at the limit of the movement of the carriage in one direction, and means for returning said carriage to its original position, substantially as described. 7. In avhemp stripping machine, the com bination of a constantly operating shaft 7 provided with a clutch splined thereon, a pinion loosely mounted on said shaft, a movable carriage provided with a rack engaging said pinion, means for causing said clntch to engage said pinion, clamping devices carried by said carriage, said clamping means. being provided with projecting cam plates, a seri s of 'knives under which the hemp leavesare drawn, carriers on which said knives are mounted and provided with perforations, means for unlocking said clamping means and lifting said knives by the movement of the carriage in one direc' tion; devices for holding the knives in theirlifted position, 'mans for returning said carriage to its initial position, and devices operated by the return of the carriage to release the means holding said knives in their lifted position, whereupon said cam plates engage. with the perforated carriers and hold the knives in raised position, substantially as described.

'8. In a hemp stripping machine, the combination of a driving shaft provided with a clutch member, a collapsible cylinder loosely mounted on said shaft and having oneend provided with a clutch face, knives or combs under which the material is drawn 115 by the revolution of said cylinder, and means for stripping the material from said cylinder, substantially as described.

' 9. In; a hemp stripping machine, the combination of a driving shaft provided with a 120 clutch, a collapsible cylinder mounted thereon and having a clutch face, a spring normally holding said clutchmembers in position, means for disengaging said clutch members, means for stripping the material 125 from said cylinder, substantially as described.

10. In a hemp stripping machine, the combination of a revoluble collapsible cylinder, means for normally holding said cylin- 130 der is its uncollapsed position, a movable I clamp adapted to engage one end of the material under treatment and to ,fit into said cylinder, knives under which the material is drawn by the revolution of said cylinder, and a spring supported frame on whichsaid knives are carried, substantially as described. I -v 11. In a hemp stripping machine, the combination of an operating shaft, a collapsible cylinder mounted thereonand on which the material under treatment is wound, a collar adapted to beslid along said cylinder to strip the material therefrom, and

a movable roller adapted to receive the material from said cyllnder, substantially as described.

12. In a hemp stripping machine, the combination of a rotating shaft provided with a clutch member, a collapsible cylinder loosely mounted thereon and provided with a clutch member adapted to engage said first named clutch member, a collar surknives, a movable carrier provided with knives or combs, devices for lifting said carrier to permit the insertion of the material between said combs, andmeans for restoring said. carrier to its initial position, substantially as described.

14. In a hemp stripping machine, a

cylinder upon which the material is wound, comprising colla sible parts, a perforated support for sai parts, one of said parts .being pivotally mounted on said support, a shaft passing through said support, a

bracket loosely carried by the end of said shaft, a plate provided with a cam face and a stop, the pivoted part of said cylinder being provided with a fork engaging said plate, and means movable along said cylinder for stripping the wound material therefrom, substantially as described.

15. In a hemp stripping machine, the

combination of a supporting frame, a constantly rotating, shaft mounted 'in said frame; a'pinion on said shaft, a movable carriage having a rack engaging said pinion, clamping means mounted on the carriage, movable knives or combs under which the material is drawn, means for unlocking said clamp and lifting said knives at a prede termined time, a collapsible cylinder mounted on said shaft, means for stripping the wound material from said cylinder, movable. knives or combs between which the material is drawn by the movement of said cylinder, and a swinging member onto which the treated material is delivered from said cylinder, substantially as described.

In testimony whereof, I aflix my signa-.

ture, in presence of two witnesses.

. EMIL DRINGMAN.

I Witnesses: I J ERAMIAH O. OLAFLEN, FoRREs'r'L. CEAsE. 

